Pumping-bellows.



R. W. PAIN. PUMPING BBLLOWS. APPLICATION FILED APR. zo: 190g.

91 1,065. Patented Feb. 2, 1909 UNITED l'lllAj'llill`-lT Ul ROBERT W. PAIN, OF NEW YRK, N. Y., Ai'w'rrllGNOll 'lfl .fi IQJLEJO.' UUMIA CQ i Ulf NEW YORK, N.\Y

ICF.

PUMPING BELLOW S Application flledfiprll 20, .19u21 Fim-loi hf- 'To all whom it may co'rtcem:

Be it lnowli that I, Roisnn'r W. PMN, n citizen of the United States, residingy :it the city of New York, borou fh o: lvlonlnittnn, county and State of New l ed certain new and useful Improveinenis` in Pum ingBellows, of which the following,Y is a speci'cation. i

This invention relates to improvements in pumping bellows such for example as are used in pneumatic musical instruments or la er attachments for musical instruments. he object ol' my invention is to provide a new and improved pumping bellows which is simple in construction, and easily and quickly adjusted for dilercnt capacities of wind;'according to the requirements oi the instrument.

In the accompanying drawings, in finch like letters of rc elenco uldu'fnte lilo. uji all the hguiesz--Figure 1 is o, side iin-,w o1 my improved pumping liollows Afind iho imiter,

l roken o. w lo' :ind Fig.. Z is mi cud broken away parts of the be lows being others shown 1n' section.4 view of the bellows, parts being and Others shown in section.

I have here shown the bellows as double bellows that is two pairs ol bellows, and one bellows of each pair on eac-h side ol n central frame constitutings suction chamber l On the to of this frame standards 2 are secured in which a" crank shaft 3 is mounted which has two cranks 4. By means of a belt iulley 6 on the ond of this crank shaft anchaielt the crank shaft can be rotated lrom'b. motor 8", an electric motor being shown in the i'lraw- Vins. hTwo bellows 9 are mounted on ach si cof the suction chamber 1 and euch heb lows is provided at the swinging!V end of its movable boord with an upwardly projecting arm 1D, thcyarms 10 of two opposite bellows being connected by connecting rods 11 with a crank f1 of 'the shaft 3, so that'wlwn one bellows of two opposite bellows constituting bellows of one puh?,- is expanded, the other this pair is compressed. Each bellows is ork, have im ent"V Specification of )..ettms Patent.

Patented Feb, 2, i909 monts l? and ll und this pnltition is pro- 'Viilcd with 1| .serios nl" pmts li-l which Cnr] im clriscd by n [lexililo or liep vulve iu'liich og'iens toward the compartment 17 and from the comparln'icnl, 15's. rlhofbottom ol the coi'nimrtuient l? is provided with n series ol' ports 2U which can be closed by a sliding vulve [El having n series of ports 22 that can register with the ports 20. This 'valve can be shifter/l or mljusted 'uy means oi' :t connecb hul rod 2X5 se that ilu; player cnn n.1. will open or close the poi-ls 20. ,il suctim'i pipe 24 is connected with the compertinent 18 of the suction chnml'cr und this pipe 24 is to be connected with the n'ierluuiism or suction chnuiii-n-L; lioui which the nir is to be ex- "iieretion, is its ollowsr---Yilicn s bei lop nl the sir is forced out through f .l2 mici when a bellows is expanded sir ,from the suction chamber l tiro ris i4.. lWhen Ythe valve 21 fo, 2G both pairs of bellows are and the bellows of the Compartment oxhnus the air entering this com artinout tluwigjh the pipe 24 and the -be lows el' ilw. mnpnrtinout 17 exhnust some of the sir from `1ho compartment 1S through the` ports it). vllhonever, for roaso s less nir is to bc exhausted, for exemple when. less power is required, the bellows of the coin-- ps-itment 1?' nre thrown out of action by cifponing the rn-ts Ztl of the compartment 1? by means oli the' slide valve 21 as thereby tbc. ".:ei'npaitment 17 is wlu'ioctcd directy with the atmosphere end atinos iheric air is ineroly drew n into the bellows o4 the coinpfu'tnujuit i? and forced out again but no air whatever drawn by the bellows of tho compari-,nuit li' from the comperment 18 as tlmy )rot uro-of lho air in the compartment 17 is aiu-n greater thou the pressure oftho air inthe von -gmrtment 18 fini the flap valve l keeps the iuris it# closed. 'lhc omi-atoris thus snob cd ai. any time to readi y control tbe bellows and to vary'thc suction poweroof thcsanis.

Having described my claim ns new and dcsiro to `Patent ist 1: In a pumpin invention what l. secure by Letters bellows, the combing tion with two cham ers havin valvod ports establishing communication etween the chambers, of valved pumping bellows in communication with each chamber, means for connecting one chamber with the atmos* phere at will and means for operating the bellows, substantially as set forth.

In a pumping bellows, the combination with -two chambers having valved ports establishing communication between the chambers, of valved pumping bellows in communication with each chamber a suction pipe connected with one chamber, and means for connecting the other chamber with the atmosphere at will,'and means for operating the bellows, substantially as set forth.

3. In a pumping bellows, the combination with two chambers, of a valve controlling communication between the two chambers, and openingv toward one chamber, a suction pipe connected with thel chamber from which the above mentioned valve opens,l means for connecting the chamber into which the valve opens at will with the pum ing bellows 'ih atmosphere, valved r eaci chamber and communication with means for operating the bellows, substan-.

tially as set forth.

4. In a pumping bellpws, the "combinf tion with two chambers, 1 of valved pots- In testimony whereof, I have signed my name to this speeilication in the presence of two subscribing witnesses, this 17th day df April 1908.

ROBERT W. PAIN. Witnesses:

J. A. HUGHES,

E. R. JOHNSONy 

